Injen 99-00 Civic Si Polished Cold Air Intake

Injen 99-00 Civic Si Polished Cold Air Intake

Marsoni

M251S

$187.22

Get it in 3 business days with 1 day shipping. Friday, May 29

Injen 99-00 Civic Si Polished Cold Air IntakeAdd some easy horsepower to your Ride with this RD Series Performance cold air intake (CAI) from Injen Technology! The engineers at Injen have spent considerable amounts of time designing, testing, and perfecting this CAI to produce some serious bolt on power while also providing amazing engine bay aesthetics. In addition to the impressive power increase, the Injen team has ensured that safe Air fuel (A F) ratios are maintained throughout the

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I used this to turn on with key on power in my truck. Power then goes through this and turns on my key on fuse panel. That way I can run a much larger cable from the battery to the fuse panel instead of pulling power through the ignition switch, where power output is limited. So far it doesn't get hot, though I am not running anything close to 500 amps through it. More like 75 amps max and even then it's only sometimes. No problems so far.

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Reviewed in the United States on July 28, 2024

Verified Purchase

Astrid Falcon

Phoenix, US

★★★★★ 5

Heavy duty and has lasted three years so far

I have had this relay installed in the engine bay of my Lexus RX 300, functioning to link the front battery to the additional battery in the trunk whenever the ignition is on. The relay has worked reliably for about three years now with no complaints besides one minor comment, be careful when threading down the nut on the Low voltage side. It is prone to stripping

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Reviewed in the United States on March 24, 2025

Verified Purchase

Dr.Ortiz Ayala

Chelsea, US

★★★★★ 5

It delivers as advertised.

Works as advertised, and is easy to install.

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Reviewed in the United States on August 18, 2025